CNN – World

Scientists have discovered a new species of dinosaur which they confirmed as the largest to have ever been found in Australia. 3D models show the magnitude of the Australotitan cooperensis.

People in the Northern Hemisphere were able to watch as the moon partially blocked out the sun to create a “ring of fire” solar eclipse. CNN’s Allison Chinchar has more.

In 1985, Carl Sagan told a crowd of space enthusiasts and aerospace engineers that humans would get to Mars in the not-too-distant future. Check out his lofty prediction in this video pulled from the CNN archives.

John Warnock Hinckley Jr. spent 35 years in a psychiatric hospital after shooting President Reagan in 1981. CNN’s Jean Casarez has the latest on Hinckley’s new YouTube channel.